"The capacity these assets give us takes the pressure off during the peak of the season, meaning we have more freedom to prioritise milk into higher-returning products," Mr Spurway said in a statement.
The goal was to strike a balance in assets which allowed Fonterra to switch between products quickly to meet changing global demand, push milk production pace when required, and ultimately deliver the best product mix to generate returns, Mr Spurway said.
South Waikato operations manager Sam Mikaere said the distribution centre had the capacity to store 40,000 tonnes of whole milk powder, which is then loaded into containers and shipped directly to port via an inbuilt rail siding.
"This provides a very cost-effective infrastructure and helps reduce the number of trucks on road," Mr Mikaere said.
There are 330 Lichfield staff, of which about 70 were additional people who assisted with the expansion, plus 20 staff from Fonterra's milk collection team who were relocated to Lichfield.
The new biological wastewater treatment plant was capable of turning dairy waste into fertiliser, which was irrigated on to neighbouring farmland to feed pastures, part of Fonterra's commitment to environmental sustainability, he said.